Finding the Fourth Proportional to 931,415.68, 1,395,994.38 and 661,118.68
Calculator
Solution
The fourth proportional to 931,415.68, 1,395,994.38 and 661,118.68 is: 990,876.56
Step by Step Solution
- Step 1: Write the proportion equation
931,415.68 : 1,395,994.38 = 661,118.68 : x - Step 2: Convert to fraction form
931,415.68/1,395,994.38 = 661,118.68/x - Step 3: Cross multiply
931,415.68x = 1,395,994.38 × 661,118.68 - Step 4: Simplify right side
931,415.68x = 922,917,961,793.02 - Step 5: Solve for x
x = 922,917,961,793.02/931,415.68 - Step 6: Final answer
x = 990,876.56
Related Problems
Find fourth proportional to 465,707.84, 697,997.19 and 330,559.34
Half scale
Find fourth proportional to 1,862,831.36, 2,791,988.76 and 1,322,237.36
Double scale
Find fourth proportional to 931,416.68, 1,395,995.88 and 661,119.68
Similar ratio
Find fourth proportional to 1,397,123.52, 2,093,991.57 and 991,678.02
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.